LANG=US 导致11G通过DBUA升级到19C失败

郑全

以前习惯在环境变量中设置一个export LANG=us,也没有注意
这次在ORACLE 11.2.0.4升级到19.3的过程中，在执行完组件升级后，执行DATA PATCH时，前提检查老是失败，报错信息也一直在报，只是没有注意

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = (unset),
        LC_ALL = (unset),
        LANG = "us"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

后来把这个环境变量去掉后，再去执行DBUA，就很顺利的升级完成。

附错误信息：

*** WARNING: ERRORS FOUND DURING UPGRADE ***
1. Evaluate the errors found in the upgrade logs
    and determine the proper action.
2. Rerun the upgrade when the problem is resolved

REASON:
      ERRORS FOUND: During Upgrade
         FILENAME: /u01/app/oracle/cfgtoollogs/dbua/upgrade2020-05-13_07-34-45AM/orcl/catupgrd0.log AT LINE NUMBER: 1072683
------------------------------------------------------
Identifier DATAPATCH_ 20-05-13 08:02:27
SCRIPT    = [/u01/app/oracle/cfgtoollogs/dbua/upgrade2020-05-13_07-34-45AM/orcl/catupgrd_datapatch_upgrade.log]
ERROR     = [Error: prereq checks failed!
]
STATEMENT = []
------------------------------------------------------
LOG FILES: (/u01/app/oracle/cfgtoollogs/dbua/upgrade2020-05-13_07-34-45AM/orcl/catupgrd*.log)
Upgrade Summary Report Located in:
/u01/app/oracle/cfgtoollogs/dbua/upgrade2020-05-13_07-34-45AM/orcl/upg_summary.log